Symptoms may include:
- Hearing loss, affecting one or both ears
- Ringing in the affected ear (tinnitus)
- Pressure or a feeling fullness in affected ear
- Loss of balance
- Facial weakness, paralysis or numbness, which occurs when the tumor presses on the adjacent facial nerve
The type and severity of symptoms depends on the size of the acoustic neuroma.
Cause and Risk Factors
There is no known cause for acoustic neuromas.
The tumors develop most often in people between the ages of 30 and 60, and in about 5 percent of cases are associated with a rare genetic condition called neurofibromatosis type 2 (NF2).